Description of The North Face Borealis Jacket When the north wind kicks The North Face Borealis jacket kicks back with 100% recycled Borealis fleece, flat-locked seams and continuous hem-to-cuff gusset for maximized comfort on and off the trail. Stay comfortable on and off the trail. Features: Shell a: 160 g/m² 100% recycled polyester fleece, anti-pilling face Shell b: 280 g/m² 58% polyester, 36% biconstituent fiber (98% polyester, 2% carbon from bamboo), 6% elastane knit fleece with jersey face Carbon from bamboo technology 100% recycled Borealis fleece Flat-locked seams Left Napoleon patch-on pocket Continuous hem-to-cuff gusset Monkey thumb cuffs Drop tail hem Wicking Ultraviolet Protection Factor (UPF) 30